Finding the Fourth Proportional to 620,965,869.30, 931,247,293.77 and 206,331,343.74
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Solution
The fourth proportional to 620,965,869.30, 931,247,293.77 and 206,331,343.74 is: 309,430,058.84
Step by Step Solution
- Step 1: Write the proportion equation
620,965,869.30 : 931,247,293.77 = 206,331,343.74 : x - Step 2: Convert to fraction form
620,965,869.30/931,247,293.77 = 206,331,343.74/x - Step 3: Cross multiply
620,965,869.30x = 931,247,293.77 × 206,331,343.74 - Step 4: Simplify right side
620,965,869.30x = 192,145,505,477,802,624 - Step 5: Solve for x
x = 192,145,505,477,802,624/620,965,869.30 - Step 6: Final answer
x = 309,430,058.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.